.header{
    width: 100%;
    background-color: #fff;
    .content{
        float: left;
        padding-left: 100px;
        height: 84px!important;
        width: 100%;
        background: white;
        margin: 0 auto;
        .logo{
            float: left;
            margin-top: 12px;
            width: 226px;
            height: 60px;
        }
        .main-nav{
            float: left;
            &:after{
                content: '';
                height: 0;
                visibility: hidden;
                display: block;
                clear: both;
            }
            a{
                float: left;
            }
            li{
                height: 84px;
                line-height: 84px;
                font-family: "微软雅黑";
                font-size: 18px;
                color: #222222;
                transition: color 0.3s;
                -webkit-transition: color 0.3s;
                transition: background-color 0.3s;
                -webkit-transition: background-color 0.3s;
                padding: 0 16px;
                &:hover{
                    background-color: #0a8ad5;
                    color: #fff;
                }
            }
            .th-bg{
                background-color: #0a8ad5;
                color: #fff;
            }
        }
    }
}
@media screen and (max-width: 1500px){
.header{
    min-width: 1200px;
    .content{
        min-width: 1200px;
        .main-nav{
            li{
                font-size: 18px;
                padding: 0 20px;
            }
        }
    }
}    
}
